Cooling Towers
a local alarm. The sprinkler waterflow alarm shall be
arranged so that the operation of the waterflow switch
General. Cooling towers shall meet the requirements in
shall produce an alarm signal that is audible throughout
NFPA 214.
all inhabited areas of the individual housing unit. The
sprinkler system waterflow switch and control valve
Special Requirements. The following requirements take
shall be monitored for alarm, supervisory, and trouble
precedence over the requirements in NFPA 214:
conditions.
Cooling towers over 57 cubic meters (2000 cubic feet)
Residential housing units shall be provided with approved
in size, having combustible fill shall be provided with an
multiple-station smoke alarms in the following locations:
automatic deluge sprinkler system.
(a) in all sleeping rooms, (b) outside of each separate
Automatic sprinkler protection shall not be required in
sleeping area, in the immediate vicinity of the sleeping
cooling towers over 57 cubic meters (2000 cubic feet)
rooms, and (c) on each level of the dwelling unit, including
in size, constructed of non-combustible materials, having
basements. All smoke alarms shall be designed and
non-combustible components (including piping) and non-
installed in accordance with the requirements in the NFPA
combustible decks.
72. All smoke alarms within the residential housing unit
shall be interconnected in such a manner that the
Automatic sprinkler protection is required for cooling
activation of any single smoke alarm will activate all the
towers which are constructed of combustible materials,
smoke alarms within the individual residential housing
have combustible components (such as PVC fill, louvers,
unit, and produce an alarm signal that is audible
drift eliminators, etc.), or a combustible deck.
throughout all inhabited areas of the individual residential
housing unit. Manual fire alarm stations shall not be
Residential Housing Units
installed in the residential housing unit.
General. Residential housing units shall meet the
requirements in the International Residential Code (IRC).
Chemical Laboratories
Special Requirements. The following requirements take
General. Laboratories shall meet the design requirements
precedence over the requirements in the IRC:
in NFPA 45 and the IBC.
Stairways in residential housing units shall have a
Special Requirements. The following requirements take
maximum riser height of 178 mm (7 inches) and a minimum
precedence over the requirements in NFPA 45:
tread depth of 279 mm (11 inches).
Laboratories handling or storing hazardous chemicals,
Residential housing units are required to be protected
flammable gases, flammable liquids, explosives, and
by an automatic fire sprinkler system. The design of the
biological laboratories shall not be expanded in existing
automatic fire sprinkler system for the residential housing
office buildings.
shall be based on the design and installation requirements
All chemical laboratories shall be sprinklered, regardless
in NFPA 13D. Each residential housing unit shall be
of size. Sprinkler protection shall be calculated to provide
provided with a local waterflow switch that will initiate
a density of 0.15 gpm per sq. ft. over a 3,000 sq. ft. area.
230 F A C I L I T I E S S T A N D A R D S
FOR THE
PUBLIC
BUILDINGS
SERVICE
7.16 Special Fire Protection Requirements
Revised March 2005 PBS-P100
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